This PR makes it so we always construct a real HTTP client in the `ExtensionBuilder`. This used to be the case, but was inadvertently changed in https://github.com/zed-industries/zed/pull/15470. Release Notes: - N/A
This PR makes it so we always construct a real HTTP client in the `ExtensionBuilder`. This used to be the case, but was inadvertently changed in https://github.com/zed-industries/zed/pull/15470. Release Notes: - N/A